spack/spack-packages
Aug 2025 – Feb 2026
6 Months active
Languages Used
PythonCMake
Technical Skills
Build SystemsCompiler ConfigurationPackage ManagementSoftware DevelopmentDependency ManagementSoftware Maintenance
Emerson Jacobson
PROFILE
Emerson Jacobson
Over six months, Evan Jacobson enhanced the spack/spack-packages repository by developing and maintaining 17 features and resolving 8 bugs, focusing on package management, build system configuration, and dependency management. He delivered updates for core scientific tools, introduced new packages, and enforced compatibility constraints to reduce build failures and support costs. Using Python, C, and CMake, Evan modernized dependency resolution, expanded multi-language build support, and improved cross-version compatibility for both open-source and commercial workflows. His work demonstrated depth in software versioning, compiler configuration, and system integration, resulting in more reliable installations and streamlined maintenance for downstream users and researchers.
Overall Statistics
Feature vs Bugs
68%Features
Repository Contributions
32Total
Bugs
8
Commits
32
Features
17
Lines of code
699
Activity Months6
Your Network
413 peopleWork History
February 2026
5 Commits • 4 Features
Feb 1, 2026February 2026 (2026-02) — Focused on scalability, compatibility, and up-to-date tooling in spack-packages. Delivered multi-slurmd support for Slurm to improve compute resource scalability; enforced GCC version compatibility for Precice to prevent builds on GCC < 9.2; updated Soci to newer versions with a C dependency to broaden compatibility; upgraded Node.js to 24.13.0 and deprecated older versions to align with security and feature progress; updated ncbi-vdb and sra-tools to 3.3.0 with new dependencies and variants. These changes reduce build failures, improve runtime stability, and keep critical tooling current for downstream users.
5 Commits • 4 Features
Feb 1, 2026February 2026 (2026-02) — Focused on scalability, compatibility, and up-to-date tooling in spack-packages. Delivered multi-slurmd support for Slurm to improve compute resource scalability; enforced GCC version compatibility for Precice to prevent builds on GCC < 9.2; updated Soci to newer versions with a C dependency to broaden compatibility; upgraded Node.js to 24.13.0 and deprecated older versions to align with security and feature progress; updated ncbi-vdb and sra-tools to 3.3.0 with new dependencies and variants. These changes reduce build failures, improve runtime stability, and keep critical tooling current for downstream users.
February 2026
January 2026
4 Commits • 3 Features
Jan 1, 2026January 2026 monthly summary for spack/spack-packages. Focus was on delivering high-value package updates and a critical bug fix to improve clarity and reliability for researchers relying on current tooling.
January 2026
4 Commits • 3 Features
Jan 1, 2026January 2026 monthly summary for spack/spack-packages. Focus was on delivering high-value package updates and a critical bug fix to improve clarity and reliability for researchers relying on current tooling.
November 2025
2 Commits • 1 Features
Nov 1, 2025Month: 2025-11 | Repository: spack/spack-packages | Summary of work: Implemented ecosystem compatibility upgrades to the Precice package, focusing on cross-version compatibility and Java ecosystem alignment. The work enhances stability and upgrade paths for downstream users by ensuring newer dependencies work seamlessly across environments.
2 Commits • 1 Features
Nov 1, 2025Month: 2025-11 | Repository: spack/spack-packages | Summary of work: Implemented ecosystem compatibility upgrades to the Precice package, focusing on cross-version compatibility and Java ecosystem alignment. The work enhances stability and upgrade paths for downstream users by ensuring newer dependencies work seamlessly across environments.
November 2025
October 2025
9 Commits • 3 Features
Oct 1, 2025Month 2025-10 – spack/spack-packages: Delivered reliable build/dependency fixes, expanded packaging coverage with multiple version updates across key tools, and introduced a new FastPlong package. The work emphasizes business value through more reliable installs, broader platform support, and faster access to up-to-date tooling for users.
October 2025
9 Commits • 3 Features
Oct 1, 2025Month 2025-10 – spack/spack-packages: Delivered reliable build/dependency fixes, expanded packaging coverage with multiple version updates across key tools, and introduced a new FastPlong package. The work emphasizes business value through more reliable installs, broader platform support, and faster access to up-to-date tooling for users.
September 2025
9 Commits • 5 Features
Sep 1, 20252025-09 Monthly Summary — spack/spack-packages: Focused on modernizing dependencies, expanding support for newer software, and removing deprecated components. Key features delivered: MariaDB 11.8.3 and 12.1.1 updates with adjusted dependencies and tarball URL; MUMmer4 4.0.1 with SHA256 checksum and C compiler dependency; Libproxy versions with dual CMake/Meson build support; cross-package dependency updates across protobuf, express, r-statmod, and icu4c; and broader C/C/Fortran build support for R packages. Major bugs fixed: Removed py_faststructure due to Python 2 deprecation; refactored NSEG resources to simplify builds and copying; resolved related build constraints for fastani, py_macs2, tophat. Overall impact: improved compatibility with modern toolchains, reduced maintenance burden, and expanded capabilities for R and QT workflows. Technologies demonstrated: multi-language build systems (C/C++/Fortran, Python), cross-package coordination, version pinning, and checksum verification.
9 Commits • 5 Features
Sep 1, 20252025-09 Monthly Summary — spack/spack-packages: Focused on modernizing dependencies, expanding support for newer software, and removing deprecated components. Key features delivered: MariaDB 11.8.3 and 12.1.1 updates with adjusted dependencies and tarball URL; MUMmer4 4.0.1 with SHA256 checksum and C compiler dependency; Libproxy versions with dual CMake/Meson build support; cross-package dependency updates across protobuf, express, r-statmod, and icu4c; and broader C/C/Fortran build support for R packages. Major bugs fixed: Removed py_faststructure due to Python 2 deprecation; refactored NSEG resources to simplify builds and copying; resolved related build constraints for fastani, py_macs2, tophat. Overall impact: improved compatibility with modern toolchains, reduced maintenance burden, and expanded capabilities for R and QT workflows. Technologies demonstrated: multi-language build systems (C/C++/Fortran, Python), cross-package coordination, version pinning, and checksum verification.
September 2025
August 2025
3 Commits • 1 Features
Aug 1, 2025Monthly performance summary for 2025-08 focusing on delivering up-to-date packages and reducing build failures in spack/spack-packages. Key contributions include updating core package metadata to recognize iq-tree 2.4.0 and e2fsprogs 1.47.3, enabling users to install the latest stable releases, and hardening NumPy builds by introducing a compatibility conflict that requires GCC 9.3+ for NumPy 2.3+. These changes improve install reliability, reduce support costs, and align with ongoing maintenance of the package manager. Technical delivery includes commit-driven changes with clear traceability.
August 2025
3 Commits • 1 Features
Aug 1, 2025Monthly performance summary for 2025-08 focusing on delivering up-to-date packages and reducing build failures in spack/spack-packages. Key contributions include updating core package metadata to recognize iq-tree 2.4.0 and e2fsprogs 1.47.3, enabling users to install the latest stable releases, and hardening NumPy builds by introducing a compatibility conflict that requires GCC 9.3+ for NumPy 2.3+. These changes improve install reliability, reduce support costs, and align with ongoing maintenance of the package manager. Technical delivery includes commit-driven changes with clear traceability.
Activity
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Quality Metrics
Correctness93.0%
Maintainability93.8%
Architecture90.6%
Performance88.2%
AI Usage20.6%
Skills & Technologies
Programming Languages
CMakePython
Technical Skills
Build System ConfigurationBuild SystemsC programmingCMakeCUDA programmingCompiler ConfigurationDependency ManagementJavaPackage ManagementPythonPython developmentPython scriptingSoftware DevelopmentSoftware MaintenanceSoftware Packaging
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